Nut-lock.



LH. BRUMHELD.

NUT LOCK,

APPLICATBON FILED MAR. 29, 1915. LYF LSKK Patented Mar. 7,1916.

srarns rarnnr @FFKQE JAMES H. BRUMFIELD, OF CAMBRIA, VIRGINIA, ASSIGNOR OF ONE-HALF TO THOMAS A. SHEWEY, OF AR EAGLE, WEST VIRGINIA.

NUT-LOCK.

Specification of Letters Patent.

Patented Mar. *7. 1.916.

Application filed March 29, 1915. Serial No. 17,770.

To all whom, it may concern Be it know that I, JAMES H. Bnnarrinnn, a citizen of the United States, residing at Cambria, in the county of Montgomery and State of V irgrinia, have invented certain new and useful Improvements in Nut Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention has for its object to provide a nut lock of simple and ellicient construction embodying a' locking member formed of spring material and having an angularly directed end adapted to engage teeth formed on the object engaging faceof a nut to lock the latter against movement on the bolt.

Another object is the provision of a nut lock embodying a nut having an annular shoulder constituting an abutment for engaging the locking member to prevent the latter from being compressed to such an tent that the nut-engaging end thereof is secured against removal rom the teeth formed on the nut.

With these and other objects in view, the in\ cition consists in the novel" construction, arrangement and vformation of parts as will. be hereinafter specifically described, claimed and illustrated in the accompanying dra\vinn, in which:

Figure 1 represents a side elevation of tliemut lock applied to use. Fig. 2 represents a transverse sectional. view on the line 22 of Fig. 1.

Referring to the drawing: in detail, wherein similar reference numerals designate corresponding parts throughout the severaljvieivs, the numeral 5 indicates the shank of; a. bolt having, a head 6 at one end and inwardly extending threads on the 0pposite end. A groove 7 is forned longitudinally of the shank 5 and is of ii-shape having the radially disposed wall 8 adapted to be engaged by the inner angular-1y directed end of the locking memberg to be here inafter described. to lock the latter against rotation on the bolt.

The numeral 9 indicates the nutwhich is formed with the internally screwthreaded bore to receive the shank of the bolt 5 and an annular enlargement or shoulder 10 is lacc thereof. A plurality of projections or points 11 are formed radially of the inner face of the nut 5) outwardly of the annular shoulder 10.

The locking member designated generally by the numeral 12 is formed of spring metal and the body thereof is of substantially annular formation, the inner and outer ends 13 and 1+, respectively, being overlapped. The body of the locking member 12 is of -adequate diameter to snugly fit over=the threaded shank of the bolt 5 and the inner extremity 13 thereof is directed inwardly for engagement within the V-shaped groove T and radial wall 8 thereof to prevent rotation of the looking member on the bolt. The opposite or outer end 14*. of the locking, member is bent angularly to provide a V shaped member 15 adapted to engage between the projections or teeth 11 on the nut. The portion of the outer extremity of the locking member intermediate the body 12 and the angular end 15 is extended out \vardly of the lateral faces or" the nut to provide means whereby the angular end 15 may be Withdrawn from the teeth or,

projections 11 to permit removal of the nut, when desired. Q

In use, the shank ofthe bolt 5 is positioned through the objects 16 to be bolted and the body 12 of the locking member is slipped over the bolt and engaged against one of the objects 16, and the inwardly directed end 13 thereof is engaged in the groove 7. The nut 9 is subsequently advanced upon the shank of the bolt by a wrench or other suitable tool until the annular shoulder or enlargement 1O firmly clamps the body of the locking member against the object 16, and the outer angularly directed extremity 15 of the locking member engages between the teeth or projections 11 and ellectively locks the nut against rotation upon the bolt. As clearly illustrated in Fig. 1, the enlargement or shoulder 10 is of sufilcient width to retain. the teeth or projection 11 in spaced relation to the adjacent face of the object 16, whereby the outer-extremity 15 of the locking member may be moved inwardly and disengaged from the teeth or projections to permit of the removal of the nut, when necessary;

' What I claim is: In combination, a bolt having a longitudinal groove, a nut fitted onsaid. bolt and hzwing its inner face toothed, a, locking member including a curved body having the inner end dii'emled inwzmlly and engaged in 1'1 to leek the l'nernber against rotation on said bolt and having a V- ehaped outer end. projecting outwardly of the side of said nut, and an annular shoulder or enlargement on the inner face sf said nut formed inwm'dly of said teeth to retain the latter in spaced relation to "the 1.0

body of said. locking member.

In testimony whereof i 1115:; my signature in presence of two Witnesses.

JAlVIES H. BRURIFIELD. .Witnesses:

C. L. Im'nnson C. F. PAGE. 

